Noun
cathine (uncountable)
English Wikipedia has an article on:cathineWikipedia
A psychoactive drug of the phenethylamine and amphetamine classes which acts as a stimulant.
When the khat leaves are chewed, cathine and cathinone are released and absorbed through the mucous membranes of the mouth as well as the lining of the stomach. Source: Internet
However, the attribution was disputed by reports showing the plant extracts from fresh leaves contained another substance more behaviourally active than cathine. Source: Internet